Zhang Jianxing has been walking through the ancient forests of the Shennongjia National Nature Reserve for over two decades to find the wild man. He will not give up until he ____ (come) face-to-face with the creature. He began living in the mountain in 1994, after becoming ____(fascinate) by the wild man. Armed with a camera, he ____ (constant) looks for clues of the creature's whereabouts, living off the land and ____ (sleep) in abandoned homes and empty caves. To him, the wild man is a branch of science,____ that he has been studying for a very long time. So far, he has collected enough evidence of the wild man's ____(exist) —more than 100 hair samples and 3,000 photos of large footprints (脚印). He even came close to seeing it for himself no less than nineteen____ (time). However, most scientists regard it as nothing more than a legend ____ there is a lack of concrete evidence. But Zhang Jianxing ____(convince) that he will one day find the wild man himself and prove the scientists wrong. To him it's just ____ matter of time.

一个拥有伟大思想的民族，才能拥有不断前进的动力。阅读材料，回答问题。

材料一：假使我们是甲午到戊戌那个时代的人，眼看见我们的国家被小小的日本打败了，打败了以后又要割地赔款，我们还不激昂慷慨想要救国吗？……戊戌春季的瓜分更刺激了变法派和光绪帝……              

——摘编自蒋廷黻《中国近代史》

材料二：同盟会决定在辛亥年（1911年）秋天起事……革命党人率队直入武昌，进攻总理衙门……武昌便为革命军所据……各独立省选派代表，制定临时约法，并公举孙中山先生为中华民国的临时总统。我们这个古老的帝国，忽然变为民国了。

——摘编自《中国近代史》

材料三：陈独秀说，西洋人因为拥护德、赛两先生，闹了多少事……德、赛两先生才渐渐从黑暗中把他们救出……我们现在认定只有这两位先生，可以救治中国政治上、道德上、学术上、思想上一切的黑暗。

材料四：1919年李大钊发表了《我的马克思主义观》一文……新文化运动已发展成为传播马克思主义为中心的思想运动。